/* this function checks the cache to see if the current state is cached,
if it is then it copies the cached data to the user region where code is
executed from, if its not cached then it gets decrypted to the current
cache position using the functions in s24_fd1094.c */
static void s24_fd1094_setstate_and_decrypt(int state)
{
int i;
UINT32 addr;
switch (state & 0x300)
{
case 0x000:
case FD1094_STATE_RESET:
fd1094_selected_state = state & 0xff;
break;
}
fd1094_state = state;
cpunum_set_info_int(1, CPUINFO_INT_REGISTER + M68K_PREF_ADDR, 0x0010); // force a flush of the prefetch cache
/* set the s24_fd1094 state ready to decrypt.. */
state = fd1094_set_state(s24_fd1094_key,state) & 0xff;
/* first check the cache, if its cached we don't need to decrypt it, just copy */
for (i=0;i<S16_NUMCACHE;i++)
{
if (fd1094_cached_states[i] == state)
{
/* copy cached state */
s24_fd1094_userregion=s24_fd1094_cacheregion[i];
memory_set_decrypted_region(1, 0, s24_fd1094_cpuregionsize - 1, s24_fd1094_userregion);
m68k_set_encrypted_opcode_range(1,0,s24_fd1094_cpuregionsize);
return;
}
}
// mame_printf_debug("new state %04x\n",state);
/* mark it as cached (because it will be once we decrypt it) */
fd1094_cached_states[fd1094_current_cacheposition]=state;
for (addr=0;addr<s24_fd1094_cpuregionsize/2;addr++)
{
UINT16 dat;
dat = fd1094_decode(addr,s24_fd1094_cpuregion[addr],s24_fd1094_key,0);
s24_fd1094_cacheregion[fd1094_current_cacheposition][addr]=dat;
}
/* copy newly decrypted data to user region */
s24_fd1094_userregion=s24_fd1094_cacheregion[fd1094_current_cacheposition];
memory_set_decrypted_region(1, 0, s24_fd1094_cpuregionsize - 1, s24_fd1094_userregion);
m68k_set_encrypted_opcode_range(1,0,s24_fd1094_cpuregionsize);
fd1094_current_cacheposition++;
if (fd1094_current_cacheposition>=S16_NUMCACHE)
{
mame_printf_debug("out of cache, performance may suffer, incrase S16_NUMCACHE!\n");
fd1094_current_cacheposition=0;
}
}
static void sp_set_status(UINT32 status)
{
if (status & 0x1)
{
//cpu_trigger(6789);
cpunum_set_input_line(1, INPUT_LINE_HALT, ASSERT_LINE);
cpunum_set_info_int(1, CPUINFO_INT_REGISTER + RSP_SR, cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) | RSP_STATUS_HALT);
//rsp_sp_status |= SP_STATUS_HALT;
}
if (status & 0x2)
{
//rsp_sp_status |= SP_STATUS_BROKE;
cpunum_set_info_int(1, CPUINFO_INT_REGISTER + RSP_SR, cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) | RSP_STATUS_BROKE);
if (cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) & RSP_STATUS_INTR_BREAK)
{
signal_rcp_interrupt(SP_INTERRUPT);
}
}
}
/* this function checks the cache to see if the current state is cached,
if it is then it copies the cached data to the user region where code is
executed from, if its not cached then it gets decrypted to the current
cache position using the functions in fd1094.c */
static void fd1094_setstate_and_decrypt(int state)
{
int i;
UINT32 addr;
cpunum_set_info_int(0, CPUINFO_INT_REGISTER + M68K_PREF_ADDR, 0x0010); // force a flush of the prefetch cache
/* set the FD1094 state ready to decrypt.. */
state = fd1094_set_state(fd1094_key,state) & 0xff;
/* first check the cache, if its cached we don't need to decrypt it, just copy */
for (i=0;i<CACHE_ENTRIES;i++)
{
if (fd1094_cached_states[i] == state)
{
/* copy cached state */
fd1094_userregion=fd1094_cacheregion[i];
set_decrypted_region();
m68k_set_encrypted_opcode_range(0,0,fd1094_cpuregionsize);
return;
}
}
/* mark it as cached (because it will be once we decrypt it) */
fd1094_cached_states[fd1094_current_cacheposition]=state;
for (addr=0;addr<fd1094_cpuregionsize/2;addr++)
{
UINT16 dat;
dat = fd1094_decode(addr,fd1094_cpuregion[addr],fd1094_key,0);
fd1094_cacheregion[fd1094_current_cacheposition][addr]=dat;
}
/* copy newly decrypted data to user region */
fd1094_userregion=fd1094_cacheregion[fd1094_current_cacheposition];
set_decrypted_region();
m68k_set_encrypted_opcode_range(0,0,fd1094_cpuregionsize);
fd1094_current_cacheposition++;
if (fd1094_current_cacheposition>=CACHE_ENTRIES)
{
mame_printf_debug("out of cache, performance may suffer, incrase CACHE_ENTRIES!\n");
fd1094_current_cacheposition=0;
}
}
static MACHINE_INIT( kinst )
{
/* set the fastest DRC options */
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_DRC_OPTIONS, MIPS3DRC_FASTEST_OPTIONS);
/* both games map one logical 4k page at address 0 to physical address 0x8090000 */
memory_install_read32_handler(0, ADDRESS_SPACE_PROGRAM, 0x00000000, 0x00000fff, 0, 0, MRA32_BANK1);
memory_install_write32_handler(0, ADDRESS_SPACE_PROGRAM, 0x00000000, 0x00000fff, 0, 0, MWA32_BANK1);
cpu_setbank(1, &rambase2[0x90000/4]);
/* keep the DCS held in reset at startup */
dcs_reset_w(1);
/* reset the IDE controller */
ide_controller_reset(0);
/* set a safe base location for video */
video_base = &rambase[0x30000/4];
}
static MACHINE_RESET( kinst )
{
/* set the fastest DRC options */
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_DRC_OPTIONS, MIPS3DRC_FASTEST_OPTIONS);
/* configure fast RAM regions for DRC */
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_SELECT, 0);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_START, 0x08000000);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_END, 0x087fffff);
cpunum_set_info_ptr(0, CPUINFO_PTR_MIPS3_FASTRAM_BASE, rambase2);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_READONLY, 0);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_SELECT, 1);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_START, 0x00000000);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_END, 0x0007ffff);
cpunum_set_info_ptr(0, CPUINFO_PTR_MIPS3_FASTRAM_BASE, rambase);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_READONLY, 0);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_SELECT, 2);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_START, 0x1fc00000);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_END, 0x1fc7ffff);
cpunum_set_info_ptr(0, CPUINFO_PTR_MIPS3_FASTRAM_BASE, rombase);
cpunum_set_info_int(0, CPUINFO_INT_MIPS3_FASTRAM_READONLY, 1);
/* keep the DCS held in reset at startup */
dcs_reset_w(1);
/* reset the IDE controller */
ide_controller_reset(0);
/* set a safe base location for video */
video_base = &rambase[0x30000/4];
}
